Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 564

Auxiliary Area Allocations
Address Name
Words Bits
A401 A40111 Too Many
I/O Points
Flag
(Fatal
error)
A40112 Fatal Inner
Board
Error Flag
(Error
causing
switch to
simplex
operation)
(Single
CPU Sys-
tems or
Process-
control
CPU Unit)
A40113 Duplica-
tion Error
Flag
(Fatal
error)
A40114 I/O Bus
Error Flag
(Fatal
error)
A40115 Memory
Error Flag
(Fatal
error)
528
Function
ON when the number of I/O points
being used in Basic I/O Units
exceeds the maximum allowed for
the PLC.
CPU Unit operation will stop and the
ERR/ALM indicator on the front of
the CPU Unit will light.
This flag will be turned OFF when
the error is cleared.
ON when there is an Inner Board
Error (Watchdog timer error). The
ERR/ALM indicator will light.
With a Single CPU System, CPU
Unit operation will stop. With a
Duplex CPU System in Duplex
Mode, operation will switch to the
standby CPU Unit and operation will
continue. With a Duplex CPU Sys-
tem in Simplex Mode, CPU Unit
operation will stop.
This flag will be turned OFF when
the error is cleared, but will be
turned ON again unless the cause of
the error is eliminated.
ON in the following cases:
Two CPU Bus Units have been
assigned the same unit number.
Two Special I/O Units have been
assigned the same unit number.
Two Basic I/O Units have been allo-
cated the same data area words.
CPU Unit operation will stop and the
ERR/ALM indicator on the front of
the CPU Unit will light.
The duplicated unit number is indi-
cated in A409 to A416.
(This flag will be turned OFF when
the error is cleared.)
ON when an error occurs in a data
transfer between the CPU Unit and a
Unit mounted to a slot.
CPU Unit operation will stop and the
ERR/ALM indicator on the front of
the CPU Unit will light.
The slot number (00 to 08) where
the I/O Bus Error occurred is written
to A40400 to A40407 in binary and
the rack number (00 to 07) is written
to A40408 to A40415 in binary
(This flag will be turned OFF when
the error is cleared.)
ON when an error occurred in mem-
ory or there was an error in auto-
matic transfer from the Memory
Card when the power was turned
ON. The ERR/ALM indicator on the
front of the CPU Unit will light.
With a Single CPU System, CPU
Unit operation will stop. With a
Duplex CPU System in Duplex
Mode, operation will switch to the
standby CPU Unit and operation will
continue. With a Duplex CPU Sys-
tem in Simplex Mode, CPU Unit
operation will stop.
The location where the error
occurred is indicated in A40300 to
A40308, and A40309 will be turned
ON if there was an error during auto-
matic transfer at start-up.
This flag will be turned OFF when
the error is cleared. (The automatic
transfer at start-up error cannot be
cleared without turning off the PLC.)
Settings Status
after
mode
change
ON: Error Cleared
OFF: No error
ON: Error Cleared
OFF: No error
ON: Duplication Cleared
error
OFF: No dupli-
cation
ON: Error Cleared
OFF: No error
ON: Error Cleared
OFF: No error
Appendix B
Status at Timing Related
startup flags,
settings
Cleared --- A407
Cleared --- A242
Cleared --- A410 to
A416
Cleared --- A404
Cleared --- A40300
to
A40308,
A40309